Dental impression instrument



FIG. 1 is a perspective view of dental impression instrument embodying our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view taken from the opposite side from FIG. 1;

FIG. 4 is a front view, taken from the left as viewed in FIG. 1;

FIG. 5 is a rear view, taken from the right as viewed in FIG. 1; and

FIG. 6 is a bottom plan view. 

The ornamental design for a dental impression instrument, substantially as shown. 